Data Representation

1. Data Representation refers to the methods used internally to represent information stored in a computer. Computers store lots of different types of information: numbers. text.

Column charts
 - useful for showing data changes over a period of time or for illustrating comparisons among items.

Line charts
 - display continuous data over time, set against a common scale, and are therefore ideal for showing trends in data at equal intervals.
   

Pie charts
 - show the size of items in one data series, proportional to the sum of the items. The data points in a pie chart are displayed as a percentage of the whole pie.
 







 Bar charts
 - illustrate comparisons among individual items.
When to use:
     • The axis labels are long.
     • The values that are shown are durations.

Area charts 

 - emphasize the magnitude of change over time, and can be used to draw attention to the total value across a trend.

Sources:

http://moodle.pshs-brc.edu.ph/

office.microsoft.com